From: Aki Tuomi <aki.tuomi@open-xchange.com>
Date: Thu, 13 Aug 2020 08:39:59 +0000 (+0300)
Subject: lib: lib-event - Use for-loop in copying categories
X-Git-Tag: 2.3.13~213
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=20765bf4763e1ce80af35e5fc74b406d63cef39c;p=thirdparty%2Fdovecot%2Fcore.git

lib: lib-event - Use for-loop in copying categories

Avoids unsigned integer wrap
---

diff --git a/src/lib/lib-event.c b/src/lib/lib-event.c
index 940508e391..b9b2e2f5b0 100644
--- a/src/lib/lib-event.c
+++ b/src/lib/lib-event.c
@@ -142,8 +142,8 @@ void event_copy_categories(struct event *to, struct event *from)
 {
 	unsigned int cat_count;
 	struct event_category *const *categories = event_get_categories(from, &cat_count);
-	while (cat_count-- > 0)
-		event_add_category(to, categories[cat_count]);
+	for (unsigned int i = 1; i <= cat_count; i++)
+		event_add_category(to, categories[cat_count-i]);
 }
 
 void event_copy_fields(struct event *to, struct event *from)